Supplementary tire for wagon-wheels



(No Model) L. TRO-WBRJIDGB SUPPLEMENTARY TIRE FOR WXGONWHEELS.

No.271,9 98 I Patented Feb. 6,1883.

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. UNITED STATES PATENT OFFICE.

MARTIN L. rnownnlnon, or GREENFIELD, WISCONSIN.-

SUPPLEMENTARY TIRE FOR WAGON-WHEELS.

SPECIFICATION forming partof Letters Patent No. 271,998, dated February 6, 1883,

Application filed November 21, 18852. (No model.)

To all whom it may concern:

Be it known that I, MARTIN L. Tnow- BRIDGE, of Greenfield, in the county of Mil waukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Supplementary Tires for Wagon-Wheels; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to supplementary tires for vehicle-wheels; and it consists in the construction and method of attachment of said tires, as well as in the device used in securing such attachment, all as will be more fully set forth hereinafter.

In the drawings, Figure 1 is a perspective of a wagon-wheel supplied with one lorm of my extra tire. Fig. 2 is a side elevation of a wheel furnished with another form. Fig. 3 is afsection on the line 3 y of Fig. 7. Fig. 4 is a sectionon theline m w of Fig. 2, and Fig. 5 is a view showing the construction and mode of operation of the lever employed in adjusting my supplementary tire to place.

Heretotore on swampy or very soft land great difticulty has been experienced by reason'of the ordinary wagon-wheels sinking into the soil, so that only light loads of farm produce could be carried, and these slowly and with difficulty. It. has been sought to overcome this by making the fellies enormous- 1y large and wide; but this has been objectionable, for these clumsy and heavy wheels, while serving the purpose on the swampy or softearth,werefound to be themselvesahinderanceto progress when the road was reached.

" To obviate all this and secure all the advanwagon; to, lts fellles, and a the width necessaryt tages of the large fellies, drawbacks, tion. e

A represents thewheel of an ordinary farmthe ordinary tire.

B is my supplementary tire, and is either provided witn acentral grooved rid ge,as shown in Figs. 1, 3, and 5, perfectly flat,as in Figs.

or 2and 4. The depression referred to is just or receiving the felly and without any of their I have devised my present inventire of the wheel, and as my supplementary tire is made of comparatively thin bar-iron the said depression causes a. ridge on the opposite side,

as shown,with flanges lrb on either side, and the wagonwheel is securely held within the described groove. With the flat supplementary tire, however,it is necessary to provide equivalent means for holdingthe wagon- Wheels, and hence I weld on at intervals the lugs 11 6, (shown in Figs. 2 and 4,) in -pairs with just sufficient space between the lugs of each pair to accommodate the felly and tire of the wagon-wheel, and hence these lugs on the fiat tire exactly correspond to the groove in the other tire. My tire is provided at each end with a pair of holes or slots, 0 0, arranged one on,each side of the ridge or part where the wagon-wheel rests, for the purpose of securing the said-ends together by bolt or key and in order to bring the ends together over the wheel a pair of holes, d d, are cut in the flanges of my tire, just back of and in line with the holes or slots 0 c, which holes at d are designed to accommodate the hooked ends of my double lever O, to be next described.

The lever 0 consists of a long shank, perforated near its end for the reception of the double claw or link 0, and again perforated, nearer its handle, for the reception ofa similar claw,e. These clawshave hooked endsff, and when my tire has been bent around the wagonwheel one of these hooksfis inserted into each of the holesd, and then a pull is given upon thelever, which brings one end of my supplementary tire over the other until the tire is tight upon the wheel and the holes or slots 0 c in each end coincide, when the two ends may be quickly fastened by either keys 9, as shown in Figs. 1 and 3, or bolts and nuts, as shown at g in Fig. 2. i

In order that my supplementary tire may present a uniformly smooth surface, without any ridge or unevenness where the ends are united, I bend one end down and out from just behind the holes or slots 0 o and cut away the central part of this bent end, just the width of" the wagon-felly, as clearly shown in Fig. 5,which shows the grooved form of the tire thus bent and cutaway, and it will be understood that the flat tire is. treated in precisely the same manner. The result of this is that the two ends, when united, make a smooth joint, as shown in Figs. 1 and 2, and hence do not present any obstruction at that point-a feature of value, as otherwise there would be a disagreeable bumping or rising making my cut.

IOO

with every revolution of the wheels when the swampy or soft land had been left and the wagon was on the hard road.

Having thus described my invention,whatI 5 claim as new, and desire to secure by Letters Patent. is-

A supplementary removable wide tire, provided with a groove or lugs for the reception of a wagon-wheel, and having holes or slots to and keys or bolts for securing the ends of said tire together, as set forth.

MARTIN L. TROWBRIDGE.

Witnesses:

STANLEY S. STOUT, H. G. UNDERWOOD. 

